Crawford County

Evolution of county from date of formation until it assumed its final form1 Apr 1820: Erected and attached to Delaware17 Feb 1824: Part attached to Seneca until organization1 Apr 1824: Part attached to Marion until organization1 Apr 1826: Organized3 Feb 1845: Diminished by formation of Wyandot. Part of Richland and Marion attached1 Mar 1848: Diminished by formation of Morrow